Vargas-Rodriguez, L.; Duran-Melendez, L.; Garcia-Masias, J.; Arcos-Garcia, J.; Joaquin-Torres, B.; Ruelas-Inzunza, M. Effect of Probiotic and Population Density on the Growth Performance and Carcass Characteristics in Broiler Chickens. Int. J. Poult. Sci. 2013, 12 (7), 390–395. https://doi.org/10.3923/ijps.2013.390.395.